Added fix for issue where updating modal would cause full page refresh inside...

Added fix for issue where updating modal would cause full page refresh inside the iframe rather than closing the modal

added 9 commits

• 22d70b94...4fc7699b - 8 commits from branch project:1.3.x
• 3004b178 - Merge branch layout_builder_iframe_modal:1.0.x into layout_builder_iframe_modal-3347330

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added 5 commits

• 3004b178...cadbf012 - 4 commits from branch project:1.3.x
• 7b421271 - Merge branch '1.3.x' into 'layout_builder_iframe_modal-3347330'

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